### What is this PR for?
A few sentences describing the overall goals of the pull request's commits.
First time? Check out the contributing guide - https://zeppelin.apache.org/contribution/contributions.html
### What type of PR is it?
Documentation | change
### Todos
- [x] replace to doc
- [x] change response 201 -> 200
### What is the Jira issue?
https://issues.apache.org/jira/browse/ZEPPELIN-1869
### Questions:
* Does the licenses files need update? no
* Is there breaking changes for older versions? no
* Does this needs documentation? yes
Author: cloverhearts <cloverheartsdev@gmail.com>
Closes#1814 from cloverhearts/ZEPPELIN-STATUS-CHANGE-API and squashes the following commits:
0f2f5bd [cloverhearts] change test case in notebooksecurity
1be0968 [cloverhearts] fixed more isCreated to isAllowed
cfcb6fd [cloverhearts] change test case in zeppelin rest api test
7bbfcd1 [cloverhearts] change status value in test case http
f9fcbc8 [cloverhearts] Revert "refix"
ed31788 [cloverhearts] refix
754309e [cloverhearts] Apply to api success status code 200
### What is this PR for?
Due to the lack of this missing API, some front-end code retrieve all settings. This is inefficient.
We can modify those codes by adding this API.
Also, i refactored the whole `InterpreterRestApiTest`
### What type of PR is it?
[Feature | Documentation | Refactoring]
### What is the Jira issue?
[ZEPPELIN-1684](https://issues.apache.org/jira/browse/ZEPPELIN-1684)
### How should this be tested?
You can run unit test `InterpreterRestApiTest`
### Screenshots (if appropriate)
Updated doc screenshots
<img width="900" alt="new_api_doc" src="https://cloud.githubusercontent.com/assets/4968473/20423419/74eeb2a0-adb3-11e6-9a69-58e33457d514.png">
### Questions:
* Does the licenses files need update? - NO
* Is there breaking changes for older versions? - NO
* Does this needs documentation? - YES, but done.
Author: 1ambda <1amb4a@gmail.com>
Closes#1655 from 1ambda/feat/create-interpreter-get-api and squashes the following commits:
89ff7fd [1ambda] style: Apply zeppelin checkstyle xml
c901287 [1ambda] docs: Add new api to rest-interpreter.html
2641a73 [1ambda] refactor: InterpreterRestApiTest
e63c80e [1ambda] refactor: testSettingsCRUD
9bc24fd [1ambda] feat: Add /interpreter/setting/id API and test
### What is this PR for?
This PR is for usability of restarting interpreter.
### What type of PR is it?
Improvement
### What is the Jira issue?
https://issues.apache.org/jira/browse/ZEPPELIN-1306
### How should this be tested?
You can restart interpreter on the interpreter binding page on a note.
and can only restart `scoped` and `isolated` interpreter.
Please refer to screen shot.
### Screenshots (if appropriate)
### Questions:
- Does the licenses files need update? no
- Is there breaking changes for older versions? no
- Does this needs documentation? no
Author: astroshim <hsshim@nflabs.com>
Closes#1302 from astroshim/ZEPPELIN-1306 and squashes the following commits:
186a361 [astroshim] rollback noteId check null
f38231c [astroshim] noteId Preconditions
af8a2d8 [astroshim] modify null check to Preconditions
72f3e4f [astroshim] fix testcase.
4dda64b [astroshim] rebase
a626188 [astroshim] rebase and fixing testcase
fc1c819 [astroshim] Merge branch 'ZEPPELIN-1306' of https://github.com/astroshim/zeppelin into ZEPPELIN-1306
499aa6b [astroshim] add PySparkInterpreter testcase
e8e0c17 [astroshim] rebase
36f5642 [astroshim] add InterpreterForNote testcase
fa45bb5 [astroshim] remove debug log
5c4b32a [astroshim] Merge branch 'master' into ZEPPELIN-1306
4c4339f [astroshim] Merge branch 'master' into ZEPPELIN-1306
72a2259 [astroshim] add testcase and fix the doc.
3127154 [astroshim] Merge branch 'master' into ZEPPELIN-1306
0453402 [astroshim] Merge branch 'master' into ZEPPELIN-1306
ecfa7fb [astroshim] remove dud code.
78fdd74 [astroshim] update alert message.
aa30b39 [astroshim] inactive link when interpreter is not selected.
123882d [astroshim] change button to icon
a980500 [astroshim] update html
f9ea386 [astroshim] fix code style
2cea65b [astroshim] change method name
50c6acf [astroshim] delete unnecessary code
29966a0 [astroshim] change UI and restart interpreter process
322d427 [astroshim] Merge branch 'master' into ZEPPELIN-1306
e698e6f [astroshim] change method name
03bdd05 [astroshim] Merge branch 'master' into ZEPPELIN-1306
4dbe05a [astroshim] change argument string to boolean
439b361 [astroshim] fix js code style.
5ad4503 [astroshim] Interpreter restarts on a note.
### What is this PR for?
This handles the NPE when the input json is empty for the interpreter setting POST request.
### What type of PR is it?
Bug Fix
### Todos
NA
### What is the Jira issue?
https://issues.apache.org/jira/browse/ZEPPELIN-728
### How should this be tested?
When empty json is sent for interpreter setting POST request, 400 status code should be returned.
### Screenshots (if appropriate)
### Questions:
* Does the licenses files need update? No
* Is there breaking changes for older versions? No
* Does this needs documentation? No
Author: Kavin <kavin.kumar@imaginea.com>
Author: Kavin Kumar <junokavin@gmail.com>
Closes#1345 from kavinkumarks/zeppelin-728-fix-NPE-intepreter-setting-post and squashes the following commits:
7ab1117 [Kavin] Updated the error codes in the REST API doc.
3397fb0 [Kavin Kumar] Handled NPE when the json is empty for interpreter setting POST request and corrected the json in the REST API doc.
### What is this PR for?
As more and more document pages are added, it's really hard to find specific pages. So I added searching feature to Zeppelin documentation site([jekyll](https://jekyllrb.com/) based site) using [lunr.js](http://lunrjs.com/).
- **How does it work?**
I created [`search_data.json`](6e02423f54/docs/search_data.json) which is used for docs info template. `lunr.js` combines all of the text from all of the docs in `docs/` into `_site/search_data.json`. It looks like below.
All the info are comes from [Jekyll YAML front matter](https://jekyllrb.com/docs/frontmatter/) variables. (i.e. title, group, description.. that's why I rewrote all docs' title and description.)
[search.js](6e02423f54/docs/assets/themes/zeppelin/js/search.js) will do this job using this data!
### What type of PR is it?
Improvement & Feature
### Todos
* [x] - Keep consistency for all docs pages' `Title`
* [x] - Add some overview sentences to all docs pages' `Description` section (this will be used as the result preview)
* [x] - Add apache license header to all docs page (some pages are missing the license header currently)
* [x] - Add LICENSE for `lunr.min.js`
### What is the Jira issue?
[ZEPPELIN-1219](https://issues.apache.org/jira/browse/ZEPPELIN-1219)
### How should this be tested?
1. Apply this patch and build `ZEPPELIN_HOME/docs` dir -> please see [docs/README.md#build-documentation](https://github.com/apache/zeppelin/tree/master/docs#build-documentation)
2. Click `search` icon in navbar and go to `search.html` page
3. Type anything you want to search in the search bar (i.e. type `python`, `spark`, `dynamic` ... )
### Screenshots (if appropriate)
### Questions:
* Does the licenses files need update? Yes, for `lunr.min.js`
* Is there breaking changes for older versions? no
* Does this needs documentation? no
Author: AhyoungRyu <fbdkdud93@hanmail.net>
Closes#1266 from AhyoungRyu/ZEPPELIN-1219 and squashes the following commits:
7ec8854 [AhyoungRyu] Modify 'no result' sentence
91b71a7 [AhyoungRyu] Remove Apache license header since JSON doesn't allow comment
34afd5d [AhyoungRyu] Add Apache license header to search_data.json
6784282 [AhyoungRyu] Minor search page UI update
0389d28 [AhyoungRyu] Make index.md not to be searched
9f1ba42 [AhyoungRyu] Disable enterkey press & change icon
bd4956a [AhyoungRyu] Add docs.js & search.js to exclude list in pom.xml
624b051 [AhyoungRyu] Add Apache license header to search.js
1381152 [AhyoungRyu] Fix search result skipping issue
6e775f5 [AhyoungRyu] Make pleasecontribute.md not to be searched
ee11136 [AhyoungRyu] Fix some typos
fa01299 [AhyoungRyu] Refine 'description' in some docs as @bzz suggested
da0cff9 [AhyoungRyu] Exclude lunr.min.js
36ba7f1 [AhyoungRyu] Add lunr.min.js license info
f6a05a6 [AhyoungRyu] Apply css style for the search results
68eb997 [AhyoungRyu] Attach 'Apache Zeppelin ZEPPELIN_VERSION Documentation: ' to title
d908c37 [AhyoungRyu] Add searching page
a951fa6 [AhyoungRyu] Add search icon to navbar
0688a79 [AhyoungRyu] Keep consistency all docs' front matter for the right search result
040f532 [AhyoungRyu] Add template for storing docs info based on jekyll front matter
0705bd6 [AhyoungRyu] Add js files: lunr.min.js & search.js
### What is this PR for?
Some of the doc files say "SparkSQL" but the collect spelling is "Spark SQL" (need a white space between "Spark" and "SQL").
Lets's replace it with the collect one.
### What type of PR is it?
Improvement
### Todos
* [x] - Replace all of "SparkSQL" in some files into "Spark SQL".
### What is the Jira issue?
https://issues.apache.org/jira/browse/ZEPPELIN-1274
### How should this be tested?
Check the changes by some people.
Author: Kousuke Saruta <sarutak@oss.nttdata.co.jp>
Closes#1271 from sarutak/ZEPPELIN-1274 and squashes the following commits:
edc9212 [Kousuke Saruta] Further replaced "SparkSQL" and "SparkSql" into "Spark SQL"
14aa2b7 [Kousuke Saruta] Replaced 'SparkSQL' in docs into 'Spark SQL'
### What is this PR for?
As of Spark 1.5.0, the default value of 'spark.executor.memory' is 1g, not 512m so let's follow the change.
### What type of PR is it?
Improvement
### Todos
* [x] - Replaced all of the occurrences of the default value of spark.executor.memory with '1g'
### What is the Jira issue?
https://issues.apache.org/jira/browse/ZEPPELIN-1289
### How should this be tested?
Should be checked by some people's eyes.
### Questions:
* Does the licenses files need update?: no
* Is there breaking changes for older versions?: no
* Does this needs documentation?: no
Author: Kousuke Saruta <sarutak@oss.nttdata.co.jp>
Closes#1280 from sarutak/ZEPPELIN-1289 and squashes the following commits:
bd58d8f [Kousuke Saruta] Modified the default value of "spark.executor.memory"
### What is this PR for?
I added auto TOC(Table of Contents) generator for Zeppelin documentation website. TOC can help people looking through whole contents at a glance and finding what they want quickly.
I just added `<div id="toc"></div>` to the each documentation header. [`toc`](https://github.com/apache/zeppelin/compare/master...AhyoungRyu:ZEPPELIN-1018?expand=1#diff-85af09fb498a5667ea455391533f945dR3) recognize `<h2>` & `<h3>` as a title in the docs and it automatically generate TOC. So I set a rule for this work. (I'll write this rule on `docs/CONTRIBUTING.md` or [docs/howtocontributewebsite](https://zeppelin.apache.org/docs/0.6.0-SNAPSHOT/development/howtocontributewebsite.html)).
```
# Level-1 Heading <- Use only for the main title of the page
## Level-2 Heading <- Start with this one
### Level-3 heading <- Only use this one for child of Level-2
toc only recognize Level-2 & Level-3
```
Please see the below attached screenshot image.
### What type of PR is it?
Improvement & Documentation
### Todos
* [x] - Add TOC generator
* [x] - Apply TOC(`<div id="toc"></div>`) to every documentation and reorganize each headers(apply the above rule)
* [x] - Fix some broken code block in several docs
* [x] - Apply TOC to `r.md` (Currently R docs has some duplicated info since [this one](d5e87fb8ba) and [this one](7d6cc7e991) )
* [x] - Apply TOC to `install.md` after #1010 merged
* [x] - Apply TOC to `interpreterinstallation.md` after #1042 merged
### What is the Jira issue?
[ZEPPELIN-1018](https://issues.apache.org/jira/browse/ZEPPELIN-1018)
### How should this be tested?
1. Apply this patch and build `docs/` with [this guide](https://github.com/apache/zeppelin/tree/master/docs#build-documentation)
2. Visit some docs page. Then you can see TOC in the header of page.
### Screenshots (if appropriate)
- Automatically generated TOC in Spark interpreter docs page
<img width="831" alt="screen shot 2016-06-16 at 9 37 18 pm" src="https://cloud.githubusercontent.com/assets/10060731/16140902/945b9c7a-340a-11e6-91f3-b6174738bed0.png">
### Questions:
* Does the licenses files need update?
No. Actually I used [jekyll-table-of-contents#copyright](https://github.com/ghiculescu/jekyll-table-of-contents#copyright). But I don't need to add a license for this :)
* Is there breaking changes for older versions? No
* Does this needs documentation? Maybe
Author: AhyoungRyu <fbdkdud93@hanmail.net>
Closes#1031 from AhyoungRyu/ZEPPELIN-1018 and squashes the following commits:
e66397b [AhyoungRyu] Apply TOC to interpreterinstallation.md
009579b [AhyoungRyu] Add more info to 'What is the next?' in install.md
04cf501 [AhyoungRyu] Revert 'where to start' section
b7cbe5f [AhyoungRyu] Fix typo
cf0911c [AhyoungRyu] Rename license file
388f35a [AhyoungRyu] Add jekyll-table-of-contents license info
6394c70 [AhyoungRyu] Fix image path in python.md
d00e4b1 [AhyoungRyu] Move interpreter/screenshot/ -> asset/../img/docs-img/
3ffb383 [AhyoungRyu] Remove duplicated info in r.md & apply toc
a03ca99 [AhyoungRyu] Exclude toc.js from pom.xml
3fae7df [AhyoungRyu] Apply auto generated toc to install.md
d114a9d [AhyoungRyu] Address @felixcheung feedback
6a788fe [AhyoungRyu] Resize TOC tab indent
6760c00 [AhyoungRyu] Apply auto TOC to all of docs under docs/storage/
fbde57f [AhyoungRyu] Apply auto TOC to all of docs under docs/quickstart/
db76eb6 [AhyoungRyu] Apply auto TOC to all of docs under docs/install/
f35db47 [AhyoungRyu] Apply auto TOC to all of docs under docs/displaysystem/
b05365f [AhyoungRyu] Apply auto TOC to all of docs under docs/rest-api/
163691c [AhyoungRyu] Apply auto TOC to all of docs under docs/manual/
bef398e [AhyoungRyu] Apply auto TOC to all of docs under docs/development/
9c5f76b [AhyoungRyu] Apply auto TOC to all of docs under docs/interpreter/
587d4ba [AhyoungRyu] Apply auto TOC to all of docs under docs/security/
1f10b97 [AhyoungRyu] Change toc configuration
78dca9e [AhyoungRyu] Add toc.js for auto generating TOC
### What is this PR for?
Update resources to use Zeppelin TLP links
### What type of PR is it?
[Bug Fix]
### What is the Jira issue?
[ZEPPELIN-898](https://issues.apache.org/jira/browse/ZEPPELIN-898)
Author: Luciano Resende <lresende@apache.org>
Closes#927 from lresende/incubator-links and squashes the following commits:
8fca07c [Luciano Resende] [ZEPPELIN-898] Update resources to use Zeppelin TLP links
### What is this PR for?
1. Fix some typos in docs.
2. Remove trailing white spaces for each line.
3. Remove leading white spaces if a line contains no content.
4. Add trailing new line for each file.
### What type of PR is it?
Improvement | Documentation
### Todos
None
### What is the Jira issue?
N/A
### How should this be tested?
Build the doc site and check.
### Screenshots (if appropriate)
N/A
### Questions:
* Does the licenses files need update? *no*
* Is there breaking changes for older versions? *no*
* Does this needs documentation? *no*
Author: Cheng-Yu Hsu <m@cyhsu.me>
Closes#852 from cyhsutw/fix-typos-in-docs and squashes the following commits:
6f5f46b [Cheng-Yu Hsu] fix typos in docs
### What is this PR for?
With this PR user will be able to set external libraries to be loaded to specific interpreter.
Note that the scope of this PR is downloading libraries to local repository, not distributing them to other nodes. Only spark interpreter distributes loaded dependencies to worker nodes at the moment.
Here is a brief explanation how the code works.
1. get rest api request for interpreter dependency setting from front-end
2. download the libraries in `ZEPPELIN_HOME/local-repo` and copy them to `ZEPPELIN_HOME/local-repo/{interpreterId}`
3. `ZEPPELIN_HOME/local-repo/{interpreterId}/*.jar` are added to interpreter classpath when interpreter process starts
### What type of PR is it?
Improvement
### Todos
* [x] Add tests
* [x] Update docs
### Is there a relevant Jira issue?
https://issues.apache.org/jira/browse/ZEPPELIN-630
And this PR will resolve [ZEPPELIN-194](https://issues.apache.org/jira/browse/ZEPPELIN-194) [ZEPPELIN-381](https://issues.apache.org/jira/browse/ZEPPELIN-381) [ZEPPELIN-609](https://issues.apache.org/jira/browse/ZEPPELIN-609)
### How should this be tested?
1. Add repository(in interpreter menu, click gear button placed top right side)
```
id: spark-packages
url: http://dl.bintray.com/spark-packages/maven
snapshot: false
```
2. Set dependency in spark interpreter(click edit button of spark interpreter setting)
```
artifact: com.databricks:spark-csv_2.10:1.3.0
```
3. Download example csv file
```
$ wget https://github.com/databricks/spark-csv/raw/master/src/test/resources/cars.csv
```
4. run below code in paragraph
```
val df = sqlContext.read
.format("com.databricks.spark.csv")
.option("header", "true") // Use first line of all files as header
.option("inferSchema", "true") // Automatically infer data types
.load("file:///your/download/path/cars.csv")
df.registerTempTable("cars")
```
```
%sql select * from cars
```
### Screenshots (if appropriate)
* Toggle repository list
<img width="1146" alt="screen shot 2016-01-25 at 12 24 44 pm" src="https://cloud.githubusercontent.com/assets/8503346/12563475/52f060ac-c35f-11e5-8621-d8eb97b4d6a1.png">
* Add new repository
<img width="1146" alt="screen shot 2016-01-25 at 12 25 23 pm" src="https://cloud.githubusercontent.com/assets/8503346/12563472/52eb545e-c35f-11e5-9050-a5306d2765f1.png">
* Show repository info
<img width="1146" alt="screen shot 2016-01-25 at 12 25 28 pm" src="https://cloud.githubusercontent.com/assets/8503346/12563473/52ebab84-c35f-11e5-9acb-3a356c855dc7.png">
* Interpreter dependency
<img width="1146" alt="screen shot 2016-01-25 at 12 27 27 pm" src="https://cloud.githubusercontent.com/assets/8503346/12563471/52eadd9e-c35f-11e5-8e1a-f583ea8800aa.png">
### Questions:
* Does the licenses files need update? No
* Is there breaking changes for older versions?
- For the users who use rest api for creat/update interpreter setting, `dependencies` object should be added to request payload.
- %dep interpreter is deprecated. The functionality is still there, but recommend to load third party dependency via interpreter menu.
* Does this needs documentation? Yes
Author: Mina Lee <minalee@nflabs.com>
Closes#673 from minahlee/ZEPPELIN-630 and squashes the following commits:
62a75c9 [Mina Lee] Merge branch 'master' of https://github.com/apache/incubator-zeppelin into ZEPPELIN-630
545c173 [Mina Lee] Change variable name LOCAL_REPO_DIR -> LOCAL_INTERPRETER_REPO
1e3dd47 [Mina Lee] Fix docs indentation
320f400 [Mina Lee] Add documentation
6b90c3d [Mina Lee] Fix mislocated interpreter setting save/cancel button
e161b98 [Mina Lee] Add tests and split ZeppelinRestApiTest into two files
387e21e [Mina Lee] Close input tag
ee7532b [Mina Lee] Combine catch block for readability
eb4a78f [Mina Lee] Handle url with file protocol for repository URL input field
bae0c02 [Mina Lee] * Fix DependencyResolver addRepo/delRepo method * Manage repository information in `conf/interpreter.json` * Front-end modification to manage repository list * Add RestApi for adding/deleting repository * Fix tests
fe9cb92 [Mina Lee] Enable adding interpreter dependency via GUI
d5c931b [Mina Lee] Fix test after rebase
1b6a818 [Mina Lee] Remove test with unused ZeppelinContext load() method
37005c5 [Mina Lee] Remove unused methods and add deprecated message for dep interpreter
2cd715c [Mina Lee] Add env variable/property to configuration template files
848d931 [Mina Lee] Make external libraries to be added to interpreter process classpath
### What is this PR for?
To introduce 'Configuration' page to Zeppelin GUI. Also introduce REST API / WebSocket operation.
### What type of PR is it?
Feature
### Todos
### Is there a relevant Jira issue?
https://issues.apache.org/jira/browse/ZEPPELIN-612
### How should this be tested?
- apply this PR
- build and start Zeppelin
- open UI and confirm Configuration tab is shown
- open Configuration page and confirm every configurations (properties) except password are shown
### Screenshots (if appropriate)
### Questions:
* Does the licenses files need update? No
* Is there breaking changes for older versions? No
* Does this needs documentation? Yes, I've address it regarding REST API.
Author: Jungtaek Lim <kabhwan@gmail.com>
Closes#645 from HeartSaVioR/ZEPPELIN-612 and squashes the following commits:
8f584b8 [Jungtaek Lim] ZEPPELIN-612 addressed @felixcheung's review
14e8e7b [Jungtaek Lim] ZEPPELIN-612 replace ellipsis with scroll bar
051c8c5 [Jungtaek Lim] ZEPPELIN-612 cut too long value with ellipsis
aa61bb3 [Jungtaek Lim] ZEPPELIN-612 add missing license header
2a24c5c [Jungtaek Lim] ZEPPELIN-612 remove unused file
23fe68f [Jungtaek Lim] ZEPPELIN-612 Add 'Configuration' doc page to navigation
c341f82 [Jungtaek Lim] ZEPPELIN-612 Add 'Configuration' page
400de02 [Jungtaek Lim] ZEPPELIN-612 Introduce APIs which shows list of configurations via WebSocket / REST API
### What is this PR for?
It would be better if Zeppelin provides looking good documentation.
### What type of PR is it?
Improvement
### Todos
* [x] - Fix typos, grammars and Increase readability writingzeppelininterpreter.md
* [x] - Also spark.md
* [x] - tutorial.md
* [x] - cassandra.md
* [x] - elasticsearch.md
* [x] - flink.md
* [x] - hive.md
* [x] - lens.md
* [x] - markdown.md
* [x] - rest-interpreter.md
### Is there a relevant Jira issue?
No : )
### How should this be tested?
These documentations are in [here](http://zeppelin.incubator.apache.org/docs/0.6.0-incubating-SNAPSHOT/).
### Screenshots (if appropriate)
### Questions:
* Does the licenses files need update? No
* Is there breaking changes for older versions? No
* Does this needs documentation? No
Author: Ryu Ah young <fbdkdud93@hanmail.net>
Closes#578 from AhyoungRyu/Fix-Typo and squashes the following commits:
925f30e [Ryu Ah young] Fix the list of 'Configure your Interpreter'
9b768e9 [Ryu Ah young] Change .md -> .html in interpreter.md
785dcbb [Ryu Ah young] Fix odd space in spark.md
a5d26d7 [Ryu Ah young] Fix version 1.5.1 -> 1.5.2 in spark.md
ef77027 [Ryu Ah young] Fix Upper case -> Lower case in cassandra.md
0918f79 [Ryu Ah young] Fix grammar error and Increase readability interpreters.md
f3d0173 [Ryu Ah young] Add numbering for dividing the table list and Fix grammar error rest-interpreter.md
fe4dfff [Ryu Ah young] Fix image size unit px -> % and Increase readability markdown.md
11b32db [Ryu Ah young] Remove useless 'to' in lens.md
3eec4cf [Ryu Ah young] Remove numbering flink.md
aac2e01 [Ryu Ah young] Add short description about Apache hive and Increase readability hive.md
d08092a [Ryu Ah young] Add highlight for scala code and Increase readability flink.md
8690e02 [Ryu Ah young] Increase readability and remove useless <hr> tag elasticsearch.md
9c008cf [Ryu Ah young] Increase readability and Remove useless <br>, <hr> tag cassandra.md
3041b95 [Ryu Ah young] Change rebuild -> rebuilding in spark.md
99b1e9e [Ryu Ah young] Remove unnecessary space in writingzeppelininterpreter.md
c63e59f [Ryu Ah young] Increase readability and delete useless <br> tag tutorial.md
e867df3 [Ryu Ah young] Increase readability and delete useless <br>, <hr> tag spark.md
f72b1cb [Ryu Ah young] Add .sh next to .bin/zeppein-daemon
466f82c [Ryu Ah young] Fix some typos and grammars in writingzeppelininterpreter.md
### What is this PR for?
Add restarting interpreter REST API information to the document.
There is no information in the document even though REST API exist.
### What type of PR is it?
Documentation
### Todos
* [x] - add restart REST API document.
### Is there a relevant Jira issue?
https://issues.apache.org/jira/browse/ZEPPELIN-521
### How should this be tested?
You can get the test information from https://github.com/apache/incubator-zeppelin/tree/master/docs.
### Questions:
* Does the licenses files need update? no
* Is there breaking changes for older versions? no
* Does this needs documentation? no
Author: astroshim <hsshim@nflabs.com>
Closes#555 from astroshim/ZEPPELIN-521 and squashes the following commits:
a7ebcf3 [astroshim] to fix build fail.
b9cb440 [astroshim] add interpreter restart REST API doc
